The Stream Series comes with Digital™ technology in order to provide 50…100% (4-cylinder) and 30…100 % (6-cylinder) step-less capacity modulation while ensuring precise temperature control and system efficiency. Digital is a much simpler modulation alternative to commonly used frequency inverters but confers the same control and energy saving benefits. Digital modulation can easily and quickly be implemented into any existing system design. The modulation mechanism is based on blocking the suction on one of the compressor cylinder banks. By controlling the time when actual compression is taking place, the capacity output of the compressor can be inﬁnitely adjusted from 30-100%. This new approach to capacity control provides many benefits:

Continuous modulation ensures a perfect match of capacity and power to the desired load

An economical and reliable alternative to variable speed drive

Precise suction pressure control with associated energy savings

Food quality is maintained by stable evaporating temperatures in the refrigerated areas

Reduced maintenance and longer life cycle through improved compressor reliability and reduced contactor wear, resulting from up to 90% reduction in compressor cycling